Security

Resources for securing your supply chain, building more secure applications, and staying up-to-date with the latest vulnerability research. Get comprehensive insights into the latest security trends—and news from the GitHub Security Lab. You can also check out our documentation on code security on GitHub to find out how to keep your code and applications safe.

Security

Capture the Flag 4—CodeQL and chill

Join our Capture the Flag challenge to use your CodeQL skills or learn new ones.

Security

Sawfish phishing campaign targets GitHub users

A phishing campaign targeting our customers lures GitHub users into providing their credentials (including two-factor authentication codes). Learn more about the threat and what you can do to protect yourself.

Security

Six years of the GitHub Security Bug Bounty program

Learn more about the Bug Bounty program, including a recap of 2019’s bugs, our expanded scope, new features, and more.

Security

Ubuntu whoopsie integer overflow vulnerability (CVE-2019-11484)

This is the fourth and final post in a series about Ubuntu’s crash reporting system. We’ll review CVE-2019-11484, a vulnerability in whoopsie which enables a local attacker to get a shell as the whoopsie user, thereby gaining the ability to read any crash report.

Security

Ubuntu apport PID recycling security vulnerability (CVE-2019-15790)

This is the third post in a series about Ubuntu’s crash reporting system. We’ll review CVE-2019-15790, a vulnerability in apport that enables a local attacker to obtain the ASLR offsets for any process they can start (or restart).

Security

Ubuntu apport TOCTOU security vulnerability (CVE-2019-7307)

This is the second post in our series about Ubuntu’s crash reporting system. We’ll review CVE-2019-7307, a TOCTOU vulnerability that enables a local attacker to include the contents of any file on the system in a crash report.

Security

Whoopsie-daisy: Chaining accidental features of Ubuntu’s crash reporter to get Local Privilege Escalation

This post summarizes several security vulnerabilities in Ubuntu’s crash reporting system: CVE-2019-7307, CVE-2019-11476, CVE-2019-11481, CVE-2019-11484, CVE-2019-15790. When chained together, they allow an unprivileged user to read arbitrary files on the system.

Security

Securing software, together

Software security is a collective problem, a responsibility that involves producers and consumers of code, open source maintainers, security researchers, and security teams. At GitHub, we want to give the community the tools it needs to secure the software we all depend on.